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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/arm/include/debug/netx.S |
Initial import
Diffstat (limited to 'arch/arm/include/debug/netx.S')
-rw-r--r-- | arch/arm/include/debug/netx.S | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/include/debug/netx.S b/arch/arm/include/debug/netx.S new file mode 100644 index 000000000..81e1b2af7 --- /dev/null +++ b/arch/arm/include/debug/netx.S @@ -0,0 +1,36 @@ +/* + * Debugging macro include header + * + * Copyright (C) 1994-1999 Russell King + * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * +*/ + +#define UART_DATA 0 +#define UART_FLAG 0x18 +#define UART_FLAG_BUSY (1 << 3) + + .macro addruart, rp, rv, tmp + ldr \rp, =CONFIG_DEBUG_UART_PHYS + ldr \rv, =CONFIG_DEBUG_UART_VIRT + .endm + + .macro senduart,rd,rx + str \rd, [\rx, #UART_DATA] + .endm + + .macro busyuart,rd,rx +1002: ldr \rd, [\rx, #UART_FLAG] + tst \rd, #UART_FLAG_BUSY + bne 1002b + .endm + + .macro waituart,rd,rx +1001: ldr \rd, [\rx, #UART_FLAG] + tst \rd, #UART_FLAG_BUSY + bne 1001b + .endm |